# Copyright (c) 2013 Thomas Nicholson <tnnich@googlemail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The names of the author(s) may not be used to endorse or promote
#    products derived from this software without specific prior written
#    permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.

import sys
import datetime
import os 
import hashlib

def log(logfile, message):

    setPermissions = False
    
    if(os.path.isfile(logfile) == False):
        setPermissions = True
    
    f = file(logfile, 'a')
    f.write(datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") + " - " + message + "\n")
    f.close()
 
    if(setPermissions):
        os.chmod(logfile, 0644)
    
 
def authLog(logfile, ip, username, password, success):
    
    setPermissions = False
    
    if(os.path.isfile(logfile) == False):
        setPermissions = True
        
    auth = "0"
    if success:
        auth = "1"
      
    f = file(logfile, 'a')
    f.write("%s,%s,%s,%s,%s\n" % (datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"),ip,username,password,auth))
    f.close()
    
    if(setPermissions):
        os.chmod(logfile, 0644)
        
def downloadLog(dt, logfile, ip, link, outFile):
    setPermissions = False
    
    if(os.path.isfile(logfile) == False):
        setPermissions = True
    
    theSize = os.path.getsize(outFile)
    
    f = file(outFile, 'rb')
    md5 = hashlib.md5()
    while True:
        data = f.read(2**20)
        if not data:
            break
        md5.update(data)
    theMD5 = md5.hexdigest()
    f.close()
      
    f = file(logfile, 'a')
    f.write("%s,%s,%s,%s,%s,%s\n" % (dt, ip, link, theSize, theMD5, outFile))
    f.close()
    
    if(setPermissions):
        os.chmod(logfile, 0644)